[INFO] cloning repository https://github.com/8bittree/crackle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/8bittree/crackle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8bittree%2Fcrackle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8bittree%2Fcrackle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bac9fd3d875e8459932bad2b25e5e3153068fa5d
[INFO] checking 8bittree/crackle against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F8bittree%2Fcrackle" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/8bittree/crackle on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/8bittree/crackle
[INFO] finished tweaking git repo https://github.com/8bittree/crackle
[INFO] tweaked toml for git repo https://github.com/8bittree/crackle written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/8bittree/crackle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded png v0.16.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02f83c74751342d6026ab9e459d6de1c30634c20f58812353aad51aae6e75ccc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "02f83c74751342d6026ab9e459d6de1c30634c20f58812353aad51aae6e75ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02f83c74751342d6026ab9e459d6de1c30634c20f58812353aad51aae6e75ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02f83c74751342d6026ab9e459d6de1c30634c20f58812353aad51aae6e75ccc", kill_on_drop: false }`
[INFO] [stdout] 02f83c74751342d6026ab9e459d6de1c30634c20f58812353aad51aae6e75ccc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d9c50aff0060884d8aef13d5fef800e649fdede592d182c6b4ce85ea6093d7a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0d9c50aff0060884d8aef13d5fef800e649fdede592d182c6b4ce85ea6093d7a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.70
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking num-iter v0.1.40
[INFO] [stderr]     Checking png v0.16.3
[INFO] [stderr]     Checking tiff v0.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking jpeg-decoder v0.1.19
[INFO] [stderr]     Checking image v0.23.4
[INFO] [stderr]     Checking crackle v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 |     for (x, y, pixel) in imgbuf.enumerate_pixels_mut() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     for (x, y, pixel) in imgbuf.enumerate_pixels_mut() {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `theta`
[INFO] [stdout]    --> src/main.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn theta(x: f32, y: f32) -> f32 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `phi`
[INFO] [stdout]    --> src/main.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn phi(x: f32, y: f32) -> f32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:25:10
[INFO] [stdout]    |
[INFO] [stdout] 25 |     for (x, y, pixel) in imgbuf.enumerate_pixels_mut() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     for (x, y, pixel) in imgbuf.enumerate_pixels_mut() {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `theta`
[INFO] [stdout]    --> src/main.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn theta(x: f32, y: f32) -> f32 {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `phi`
[INFO] [stdout]    --> src/main.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn phi(x: f32, y: f32) -> f32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.63s
[INFO] running `Command { std: "docker" "inspect" "0d9c50aff0060884d8aef13d5fef800e649fdede592d182c6b4ce85ea6093d7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d9c50aff0060884d8aef13d5fef800e649fdede592d182c6b4ce85ea6093d7a", kill_on_drop: false }`
[INFO] [stdout] 0d9c50aff0060884d8aef13d5fef800e649fdede592d182c6b4ce85ea6093d7a